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Application of transport-of-intensity equation in fringe analysis
Optics Letters, 2014The transport-of-intensity equation (TIE) is applied in the reconstruction of two interfering wavefronts by analyzing the interference patterns and their derivatives along their common propagation directions. The TIE is extended from one wave to two waves and is then applied to calculate the phase of the interference field.
Javad, Amiri +3 more
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Fully-phase encryption using transport of intensity equation
Imaging and Applied Optics Congress, 2020A new method of optical image encryption based on transport of intensity equation has been proposed. The main drawback of the conventional double random phase encoding based optical encryption is to record complex information, which can be alleviated with transport of intensity equation.
Alok K. Gupta +2 more
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Quantitativeness of phase measurement by transport of intensity equation
Journal of Electron Microscopy, 2009Based on the transport of intensity equation (TIE), a phase map can be readily retrieved from only three images of a focal series. The retrieval procedure does not require an iterative calculation and it is performed very fast with the use of the fast Fourier transform.
Masanori, Mitome +2 more
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Phase Retrieval Based on Transport-of-intensity Equation
ACTA PHOTONICA SINICA, 2011Phase retrieval based on the transport-of-intensity equation is researched to calculate phase information from the intensity measurement.A practical phase retrieval system is designed including classic Fourier phase retrieval algorithm and phase retrieval algorithm based on the total variation.Only measurements of the spatial intensity of the optical ...
程鸿 CHENG Hong +3 more
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Multigrid Algorithm Based on Transport of Intensity Equation
ACTA PHOTONICA SINICA, 2013Multigrid algorithm based on the transport of intensity equation is researched to retrieval phase information from the intensity measurement.Given initial value and stared from the coarsest grid,a solution is obtained by calculating;regarded it as the finest initial value,an approximate solution is obtained by calculating;then its residual is ...
刘红 LIU Hong +3 more
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Transport of intensity equation-based terahertz lensless full-field phase imaging
Optics Letters, 2021Terahertz (THz) phase imaging is widely spreading in various scenarios, among which full-field phase distributions are commonly retrieved by digital holography or ptychography. In this Letter, the transport of the intensity equation reconstruction method is applied into the THz band.
Lu Rong +6 more
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Phase Retrieval Using the Transport-of-Intensity Equation
2009 Fifth International Conference on Image and Graphics, 2009The transport-of-intensity equation describes the internal relationship between the intensity and phase distribution while wave is propagating in the mobile space. So the phase distribution can be solved by the use of the equation. It is an important measurement of non-interferometry.
Hong Cheng +3 more
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Two-dimensional phase unwrapping using the transport of intensity equation
Applied Optics, 2016We report a method for two-dimensional phase unwrapping based on the transport of intensity equation (TIE). Given a wrapped phase profile, we generate an auxiliary complex field and propagate it to small distances to simulate two intensity images on closely spaced planes.
Neeraj, Pandey +2 more
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Phase Extracting Imaging by Stacking Defocus Transport of Intensity Equation
Digital Holography and 3-D Imaging 2022, 2022The investigation of cells was performed using TIE. The phase imaging using a stack of low defocus intensity images has shown better results of the cell edge and shape comparing with the traditional one.
Suwan Plaipichit +3 more
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Optimum plane selection for transport-of-intensity-equation-based solvers
Applied Optics, 2014Deterministic single beam phase retrieval techniques based on the transport of intensity equation (TIE) use the axial intensity derivative obtained from a series of intensities recorded along the propagation axis as an input to the TIE-based solver. The common belief is that, when reducing the error present in the axial intensity derivative, there will
J, Martinez-Carranza +2 more
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